Today, while on my way to pick up Eh from school, I met one of my neighbors. She wished me mazal tov on the new baby, asked me how we both are.
As we were parting, I said 'Good to see you, Rivky!'
"Hmm... Rivky is my upstairs neighbor. My name is Malka.' my neighbor replied politely.
I apologized for my mistake and told Malka that from now on, I'll call her by her right name.
However, two hours later, to my great embarrassment I remembered having a little chat with Malka before that ended with 'Good to see you, Rivky!' and 'I'm sorry, I won't forget your name now!'